Hi I see you are in the West Midlands good camping and caravan shop in Cannock and Coventry they have a few different awnings all set up worth a trip this way you really get a feel for size shape ect
My advice is to go for a air type
And you will need a drive away awning kit if your planning on driving away and leaving the awning standing
One thing to remember is that most of the awnings kits are in three pieces easy to pack
Only challenge is that this can cause a drip right over your sliding door
I found the best is to buy a one piece rail drive away type this way it’s solid all the way only thing is we’re you put the rail when not in use ?
The other thing is that myself for single stop nights I just throw up a canopy easy and quick, it can be set in different formats to aid what you want. Less room in the van and a third of the price ?
Happy to help with any questions.